C019
Ice Core Records of Environmental Change

Session ID#: 78731

Session Description:
Ice cores record environmental variability over seasonal to orbital timescales, often at a resolution unmatched by other archives. This session seeks to integrate ice core records from around the world with climate models and other paleoclimate archives to gain insight into past and future environmental change.

We invite contributions on subjects that include, but are not limited to: new results from ice core campaigns, paleoenvironmental reconstructions, new analytical techniques, advances in proxy development and interpretation, integration of ice core records with other natural archives and/or climate model simulations, and glaciological studies that contribute to interpretation of ice core records.

Co-Organized:
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0724 Ice cores [CRYOSPHERE]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1616 Climate variability [GLOBAL CHANGE]
4994 Instruments and techniques [PALEOCEANOGRAPHY]

Primary Convener:  Vasilii V Petrenko, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States
Conveners:  Murat Aydin, University of California Irvine, Irvine, CA, United States, Erich C Osterberg, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States and Tyler J Fudge, University of Washington Seattle Campus, Seattle, WA, United States
Primary Liaison:  Vasilii V Petrenko, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States
 
The age of ice exposed along the northern margin of the Greenland Ice Sheet (491739)
Joseph A MacGregor, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Mark A Fahnestock, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, William T Colgan, Geological Survey of Denmark and Greenland, Copenhagen, Denmark and Lauren C Andrews, University of Texas, Institute for Geophysics, Austin, TX, United States
 
Molecular Reconstruction of Organic Aerosol Composition from a High-alpine Glacier Ice Core Covering the Pre-industrial to the Present-day Transition (492038)
Alexander Vogel1,2, Anja Lauer1, Ling Fang2, Katarzyna Arturi2, Franziska Bachmeier1, Kaspar Daellenbach3, Timon Kaeser2, Athanasia Vlachou2, Urs Baltensperger4, Imad El-Haddad2, Margit Schwikowski2 and Sasa Bjelic2, (1)Goethe University Frankfurt, Frankfurt, Germany, (2)Paul Scherrer Institute, Villigen, Switzerland, (3)University of Helsinki, Helsinki, Finland, (4)Paul Scherrer Institute, Villingen, Switzerland
 
Twentieth Century Black Carbon and Dust Deposition on South Cascade Glacier, Washington State, USA as Reconstructed from a 158 m Long Ice Core (494022)
Susan Kaspari1, Dan Pittenger1, Theo Jenk2,3, Uwe Morgenstern4, Margit Schwikowski2,3, Nikolaus H Buenning5 and Lowell D Stott5, (1)Central Washington University, Ellensburg, WA, United States, (2)Paul Scherrer Institut, Villigen, Switzerland, (3)University of Bern, Oeschger Centre for Climate Change Research, Bern, Switzerland, (4)GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand, (5)University of Southern California, Los Angeles, CA, United States
 
Two Decades Ammonium Records from Ice Core in Qiangyong Glacier in the Northern Himalayas (496159)
Ran Tian, Student, Institue of International rivers and Eco-security, Yunnan University, Kunming, China and Lide Tian, Yunnan Key Laboratory of International Rivers and Transboundary Eco–security, Kunming, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, China
 
Key driver of d-excess in ice core from central Tibetan Plateau and its potential climatic implications (496353)
Lili Shao, Yunnan University, Kunming, China and Lide Tian, Yunnan Key Laboratory of International Rivers and Transboundary Eco–security, Kunming, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, China
 
Synchronizing the WAIS Divide Ice Core with GICC05 from 39-43 ka BP using High-resolution 10Be Measurements during Laschamp Geomagnetic Excursion (497101)
Kees Christiaan Welten1, Marc Caffee2, Thomas E Woodruff2, Moshammat Mijjum3, Jeffrey P Severinghaus4 and Christo Buizert5, (1)University of California Berkeley, Berkeley, CA, United States, (2)Purdue University, West Lafayette, IN, United States, (3)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (4)Scripps Institution of Oceanography, La Jolla, CA, United States, (5)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Spatial Extension of Deep Ice Core Electrical Stratigraphy by Radar Sounding (499420)
Riley Culberg, Stanford University, Department of Electrical Engineering, Stanford, CA, United States and Dustin M Schroeder, Stanford University, Department of Geophysics, Department of Electrical Engineering, Stanford, CA, United States
 
Long-term winter warming trend in the northwestern Tibetan Plateau constrained by ice core water isotopes during the mid-to late Holocene (500782)
Hongxi Pang, Nanjing University, Nanjing, Jiangsu, China and Shugui Hou, Nanjing University, Nanjing, China
 
Investigating Recent Environmental Change Using a 7.9 m Long Trace Element Firn Core Record from South Cascade Glacier, Washington State, USA (508985)
Aaron Heslip, Renton, WA, United States, Susan Kaspari, Central Washington University, Ellensburg, WA, United States and Angela Halfpenny, Central Washington University, Department of Geological Sciences, Ellensburg, WA, United States
 
81Kr dating at the Guliya Ice Cap, Tibetan Plateau (509349)
Lide Tian1, Florian Ritterbusch2, Ji-Qiang Gu3, Shui-Ming Hu4, Wei Jiang4, Zheng-Tian Lu4, Di Wang Jr5 and Guo-Min Yang4, (1)Yunnan University, Institute of international Rivers and Eco-security, Kunming, China, (2)Heidelberg University, Institute of Environmental Physics, Heidelberg, Germany, (3)Athens, GA, United States, (4)University of Science and Technology of China (USTC), Hefei, China, (5)Yunnan University, Institute of International Rivers and Eco-security, Kunming, China
 
An inverse model for corrections of the effects of post-depositional processing on snow nitrate: ice-core applications and preliminary results (512996)
Lei Geng1, Zhuang Jiang1, Becky Alexander2, John Wesley Robinson3, Joseph Henri Erbland4 and Joel P Savarino5, (1)University of Science and Technology of China, Hefei, China, (2)University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, (3)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, WA, United States, (4)Univ. Grenoble Alpes, CNRS, IRD, G-INP, Institut des Géosciences de l’Environnement, Grenoble, France, (5)University Grenoble Alpes, CNRS, IRD, Institute for Geosciences and Environmental research, Grenoble, France
 
Chemical forms of aerosol particles in Dome Fuji ice core for past 720 thousand years (513788)
Daisuke Hasegawa, Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan, Yoshinori Iizuka, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan, Toshitaka Suzuki, Yamagata Univ, Yamagata, Japan, Hiroshi Ohno, Kitami Institute of Technology, Kitami, Japan and Shuji Fujita, Natl Inst Polar Research, Tokyo, Japan
 
High-resolution water isotope records from recent Greenland and Antarctic ice core projects (515698)
Tyler R Jones1, Eric J. Steig2, James W C White3, Bruce H Vaughn1, Valerie A Morris1, Bo Vinther4, Bradley R Markle5, Kurt M Cuffey6, William H.G. Roberts7, Vasileios Gkinis8, Abigail Thayer1, Emma Carolyn Kahle2, William Skorski1 and Richard Nunn9, (1)University of Colorado, Institute of Arctic and Alpine Research, Boulder, CO, United States, (2)University of Washington, Seattle, WA, United States, (3)Univ Colorado, Institute of Arctic and Alpine Research, Boulder, CO, United States, (4)University of Copenhagen, København Ø, Denmark, (5)California Institute of Technology, Pasadena, CA, United States, (6)University of California Berkeley, Geography, Berkeley, CA, United States, (7)Northumbria University, Newcastle-upon-Tyne, United Kingdom, (8)University of Copenhagen, Centre for Ice and Climate, Copenhagen, Denmark, (9)USGS, Lakewood, CO, United States
 
14CO in Glacial Ice from Law Dome, Antarctica as a Tracer of Changes in Atmospheric OH Abundance from 1870 AD to Present (516608)
Peter D Neff1,2, Vasilii V Petrenko1, David M Etheridge3, Andrew M Smith4, Edward Crosier1, David Thornton3, Lenneke M Jong5, Ross Beaudette6, Christina M Harth6, Ray Leonard Langenfelds3, Mark Curran5, Benjamin Hmiel1, Christo Buizert7, Lee T Murray1, Cathy M Trudinger3, Michael Dyonisius1, Jessica Yi-Jun Ng6, Jeffrey P Severinghaus6, Blagoj Mitrevski3 and Ray F Weiss6, (1)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (2)University of Washington, Department of Earth and Space Sciences, Seattle, WA, United States, (3)CSIRO, Aspendale, VIC, Australia, (4)Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, Australia, (5)Australian Antarctic Division, Kingston, TAS, Australia, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
D-O Warming Episodes During the Last Glacial Period From the ReCAP Ice Core (537235)
Todd Sowers, Pennsylvania State University Main Campus, University Park, PA, United States, Christo Buizert, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Thomas Blunier, University of Copenhagen, Centre for Ice and Climate, København Ø, Denmark and Bo Vinther, University of Copenhagen, København Ø, Denmark
 
An Inverse Approach to Estimate Past Ice Sheet Conditions from the South Pole Ice Core (542090)
Emma Carolyn Kahle1, Eric J. Steig1, Tyler R Jones2, Michelle R Koutnik3, T. J. Fudge4, Christo Buizert5 and Edwin D Waddington1, (1)University of Washington, Seattle, WA, United States, (2)Institute of Arctic and Alpine Research, Environmental Studies - ENVS, Boulder, CO, United States, (3)University of Washington, Department of Earth and Space Sciences, Seattle, WA, United States, (4)University of Washington, Earth and Space Sciences, Seattle, WA, United States, (5)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
A new conceptual model for interpolar climate coupling during the Ice Ages (548856)
Meghan Ewing Harris, SUNY College of Environmental Science and Forestry, Syracuse, NY, United States and Christo Buizert, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Volcanic ash stimulation of marine primary production in the northeastern subarctic Pacific over the past 200 years (559087)
Marius Orehovschi1, Bess G Koffman2, Erich C Osterberg3, Dominic Winski3, David G Ferris3, David Polashenski4, Karen Stamieszkin5, Karl J Kreutz6, Cameron P Wake7 and Seth W Campbell6, (1)Colby College, Waterville, ME, United States, (2)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (3)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (4)Dartmouth College, Hanover, NH, United States, (5)University of Maine, Orono, ME, United States, (6)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (7)Univ New Hampshire, Durham, NH, United States
 
Younger Dryas Trigger Through the Lens of GRIP Ice Core (564079)
Ji-Hye Seo1, Changhee Han2, Joergen Peder Steffensen3, Erich C Osterberg4, Sungmin Hong2 and Mukul Sharma1, (1)Dartmouth College, Hanover, NH, United States, (2)Inha University, Ocean sciences, Incheon, South Korea, (3)Niels Bohr Institute - University of Copenhagen, Copenhagen, Denmark, (4)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States
 
High-resolution CO2 and N2O records reveal centennial variations (565978)
Jinho Ahn1, Yeongjun Ryu2, Hunkyu Lee3, Edward Brook4 and Christo Buizert4, (1)Seoul National University, Seoul, Korea, Republic of (South), (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (3)Seoul National University, Seoul, South Korea, (4)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Heterogeneous distributions of greenhouse gas concentration in snow layers of Styx Glacier, East Antarctica (576434)
Sang-young Han, Seoul city, Seoul, South Korea, Jinho Ahn, Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), Soon Do Hur, Korea Polar Research Institute, Incheon, South Korea and Yoshinori Iizuka, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
 
The Potential of In Situ Cosmogenic Carbon-14 in Polar Ice for Reconstructing Past Variations in Cosmic Ray Flux (581830)
Vasilii V Petrenko1, Benjamin Hmiel1, Michael Dyonisius1, Segev BenZvi2, Andrew M Smith3, Quan Hua3 and Bin Yang3, (1)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (2)University of Rochester, Department of Physics and Astronomy, Rochester, NY, United States, (3)Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, Australia
 
Development and initial results of ice core CO2 extraction by sublimation for 14C analysis (586839)
Benjamin Hmiel1, Michael Dyonisius1, Vasilii V Petrenko1, Jochen Schmitt2, Michael Kalk3 and Edward Brook3, (1)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (2)University of Bern, Oeschger Centre for Climate Change Research, Bern, Switzerland, (3)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Antarctic Accumulation-Temperature Sensitivity on centennial to multi-millennial timescales (592289)
Tyler J Fudge, University of Washington Seattle Campus, Seattle, WA, United States, Christo Buizert, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Eric J. Steig, University of Washington, Seattle, WA, United States and Nelia W Dunbar, New Mexico Institute of Mining and Technology, Socorro, NM, United States
 
Applications for Ultra-High Resolution Glaciochemical Records From High Altitude Mountain Glaciers (592540)
Heather Clifford1, Elena Korotkikh2, Mariusz Potocki1, Charles Rodda1, Nicole E Spaulding3, Andrei Kurbatov1, Sharon Buchanan Sneed3, Michael Handley1, Jefferson C Simoes4 and Paul Andrew Mayewski1, (1)University of Maine, Climate Change Institute, Orono, ME, United States, (2)University of Maine, Orono, ME, United States, (3)Climate Change Institute, Orono, ME, United States, (4)Univ Fed Rio Grande Sol, Porto Alegre, RS, Brazil
 
Left in the Dust? South Pole Ice Core Dust Record of Southern Westerly Winds During Dansgaard-Oeschger Events (592810)
Katherine Anderson1, Erich C Osterberg1, Dominic Winski1, Karl J Kreutz2,3, Jihong Cole-Dai4, David G Ferris1, Zayta Renay Thundercloud1, Aaron Chesler2,3, Eric J. Steig5, Edward Brook6, Christo Buizert6, Bradley R Markle7, Shaun A Marcott8 and Bess G Koffman9, (1)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (2)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (3)University of Maine, Climate Change Institute, Orono, ME, United States, (4)South Dakota State University, Department of Chemistry and Biochemistry, Brookings, SD, United States, (5)University of Washington, Seattle, WA, United States, (6)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (7)California Institute of Technology, Pasadena, CA, United States, (8)University of Wisconsin-Madison, Department of Geoscience, Madison, WI, United States, (9)Colby College, Department of Geology, Waterville, ME, United States
 
Finding the optimal site for a deep ice core at Hercules Dome, Antarctica (595913)
Eric J. Steig1, Knut A Christianson2, Nicholas Holschuh2, Benjamin H Hills2, T. J. Fudge2, Andrew Osten Hoffman2, Annika Noel Horlings2, Gemma Kim O'Connor2 and John Erich Christian2, (1)University of Washington, Seattle, WA, United States, (2)University of Washington, Earth and Space Sciences, Seattle, WA, United States
 
Atmospheric ethane and acetylene variability over the last 50,000 years from the South Pole Ice Core (SPICEcore) (599678)
Melinda Renee Nicewonger1, Murat Aydin1, Erich C Osterberg2, Dominic Winski3, David G Ferris2, Karl J Kreutz3, Jihong Cole-Dai4, Zayta Renay Thundercloud2, Katherine Anderson5, Michael J Prather1 and Eric S Saltzman1, (1)University of California Irvine, Irvine, CA, United States, (2)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (3)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (4)South Dakota State University, Department of Chemistry and Biochemistry, Brookings, SD, United States, (5)Institute of Arctic and Alpine Research, Boulder, CO, United States
 
Atmospheric Carbonyl Sulfide and Methyl Chloride During the Last 12,000 Years Based on Measurements from the South Pole SPC14 Ice Core (SPICEcore) (606591)
Murat Aydin, Melinda R. Nicewonger and Eric S Saltzman, University of California Irvine, Irvine, CA, United States
 
How cold was Antarctica during the Last Glacial Maximum? (Invited) (609337)
Christo Buizert1, T. J. Fudge2, William Roberts3, Catherine Ritz4, Eric Lefebvre4, Sam Sherriff-Tadano5, Ayako Abe-Ouchi6, Carlos Martin7, Hugh F J Corr7, Jeffrey P Severinghaus8, Ross Beaudette9, Eric J. Steig10, Jenna Epifanio11, Nicholas Siler11, Edward Brook1, Kenji Kawamura12, Ikumi Oyabu13, Todd Sowers14, Michael Sigl15, Mirko Severi16 and Nelia Dunbar17, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)University of Washington, Earth and Space Sciences, Seattle, WA, United States, (3)Northumbria University, Newcastle-Upon-Tyne, United Kingdom, (4)LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France, (5)Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan, (6)University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan, (7)NERC British Antarctic Survey, Cambridge, United Kingdom, (8)Scripps Institution of Oceanography, La Jolla, CA, United States, (9)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (10)University of Washington, Seattle, WA, United States, (11)Oregon State University, Corvallis, OR, United States, (12)Natl. Inst. of Polar Research, Tokyo, Japan, (13)National Institute of Polar Research, Tokyo, Japan, (14)Pennsylvania State University Main Campus, University Park, PA, United States, (15)Paul Scherrer Institut, Laboratory of Environmental Chemistry, Villigen, Switzerland, (16)University of Florence, Florence, Italy, (17)New Mexico Institute of Mining and Technology, Socorro, NM, United States
 
EGRIP – drilling through an ice stream (Invited) (609390)
Dorthe Dahl-Jensen, Broenshoej, Copenhagen, Denmark and EGRIP Community
 
Hydrogen and Oxygen Isotopes Hint at Two Ancient, Stacked Ice Bodies, Ong Valley, Transantarctic Mountains, Antarctica (609436)
Ronald Matheney1, Noah Stene1, Marie Bergelin1, Jaakko Putkonen1, Greg Balco2 and Daniel J Morgan3, (1)University of North Dakota, Geology and Geological Engineering, Grand Forks, ND, United States, (2)Berkeley Geochronology Center, Berkeley, CA, United States, (3)Vanderbilt University, Earth and Environmental Sciences, Nashville, TN, United States
 
Aerosol Iron Delivery and Geochemistry across Termination I: A New Record from the South Pole Ice Core (615740)
Aaron Chesler1,2, Bess G Koffman3, Karl J Kreutz1,2, Erich C Osterberg4, Dominic Winski1,2, David G Ferris4, Zayta Renay Thundercloud4, Jihong Cole-Dai5, Mark L Wells6, Michael Handley1, Aaron E Putnam1,2, Katherine Anderson4 and Natalie Harmon2, (1)University of Maine, Climate Change Institute, Orono, ME, United States, (2)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (3)Colby College, Department of Geology, Waterville, ME, United States, (4)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (5)South Dakota State University, Department of Chemistry and Biochemistry, Brookings, SD, United States, (6)University of Maine, School of Marine Sciences, Orono, ME, United States
 
The 60 years history of atmospheric sulfate formation pathways based on triple oxygen isotopic composition preserved in the SE-Dome ice core (618300)
Shohei Hattori1, Yoshinori Iizuka2, Koji Fujita3, Ryu Uemura4, Sakiko Ishino5, Naga Oshima6, Sumito Matoba7, Nozomi Suzuki1, Asuka Tsuruta8, Joel P Savarino9 and Naohiro Yoshida10, (1)Tokyo Institute of Technology, Tokyo, Japan, (2)Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan, (3)Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan, (4)University of the Ryukyus, Okinawa, Japan, (5)National Institute of Polar Research, Tokyo, Japan, (6)Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan, (7)Hokkaido University, Sapporo, Japan, (8)Tokyo Institute of Technology, Kanagawa, Japan, (9)University Grenoble Alpes, CNRS, IRD, Institute for Geosciences and Environmental research, Grenoble, France, (10)Tokyo Institute of Technology, School of Materials and Chemical Technology, Tokyo, Japan
 
Penultimate glacial-interglacial transition from gas measurements of the Dome Fuji ice core, Antarctica (621249)
Ikumi Oyabu1, Kenji Kawamura1,2 and Kyotaro Kitamura1, (1)National Institute of Polar Research, Tokyo, Japan, (2)SOKENDAI Graduate University for Advanced Studies, Kanagawa, Japan
 
Seasonality and relationship to ozone of the perchlorate signal at Summit, Greenland (621334)
Joshua Kennedy, South Dakota State University, Brookings, SD, United States, Jihong Cole-Dai, South Dakota State University, Department of Chemistry and Biochemistry, Brookings, SD, United States, Thomas Cox, Butte College, Chico, CA, United States, Kari Peterson, SGS, Brookings, United States and David Ferris, Dartmouth College, Hanover, NH, United States
 
Accurate Chronology and Climatic Reconstruction around MIS 11 from Gas Measurements of the Dome Fuji Ice Core, Antarctica (622941)
Kenji Kawamura1,2, Ikumi Oyabu1, Shuji Aoki3, Takakiyo Nakazawa3, Ayako Abe-Ouchi4 and Fuyuki Saito5, (1)National Institute of Polar Research, Tokyo, Japan, (2)SOKENDAI Graduate University for Advanced Studies, Kanagawa, Japan, (3)Tohoku University, Sendai, Japan, (4)University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan, (5)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
 
The 20th century Atmospheric History of Molecular Hydrogen from South Pole Firn Air (624111)
John Patterson, Murat Aydin and Eric S Saltzman, University of California Irvine, Irvine, CA, United States
 
An energetic view of millennial climate variability and a role for Greenhouse Gases in Dansgaard-Oeschger Events (634107)
Bradley R Markle, California Institute of Technology, Pasadena, CA, United States
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